Home / 92,286,205.20-138,429,307.80-77,281,635.60

Finding the Fourth Proportional to 92,286,205.20, 138,429,307.80 and 77,281,635.60

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Solution

The fourth proportional to 92,286,205.20, 138,429,307.80 and 77,281,635.60 is: 115,922,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,286,205.20 : 138,429,307.80 = 77,281,635.60 : x
  2. Step 2: Convert to fraction form
    92,286,205.20/138,429,307.80 = 77,281,635.60/x
  3. Step 3: Cross multiply
    92,286,205.20x = 138,429,307.80 × 77,281,635.60
  4. Step 4: Simplify right side
    92,286,205.20x = 10,698,043,321,759,838
  5. Step 5: Solve for x
    x = 10,698,043,321,759,838/92,286,205.20
  6. Step 6: Final answer
    x = 115,922,453.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.